Python MySQL Order By 语句
结果排序
请使用 ORDER BY 语句按升序或降序对结果进行排序。
ORDER BY 关键字默认按升序对结果进行排序。若要按降序对结果进行排序,请使用 DESC 关键字。
实例
以字符顺序对姓名进行排序,结果:
import mysql.connector
mydb = mysql.connector.connect(
host="localhost",
user="yourusername",
password="yourpassword",
database="mydatabase"
)
mycursor =
mydb.cursor()
sql = "SELECT * FROM customers ORDER BY name"
mycursor.execute(sql)
myresult = mycursor.fetchall()
for x in myresult:
print(x)
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降序排序
请使用 DESC 关键字按降序对结果进行排序。
实例
按反转字母顺序对姓名的结果进行排序:
import mysql.connector
mydb = mysql.connector.connect(
host="localhost",
user="yourusername",
password="yourpassword",
database="mydatabase"
)
mycursor = mydb.cursor()
sql = "SELECT * FROM customers ORDER BY
name DESC"
mycursor.execute(sql)
myresult = mycursor.fetchall()
for x in myresult:
print(x)
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